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arXiv · hep-th/0111268

Scalar fluctuations in dilatonic brane-worlds

V. Bozza·M. Gasperini·G. Veneziano
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Abstract

We derive and solve the full set of scalar perturbation equations for a class of five-dimensional brane--world solutions, with a dilaton scalar field coupled to the bulk cosmological constant and to a 3-brane. The spectrum contains one localized massless scalar mode, to be interpreted as an effective dilaton on the brane, inducing long--range scalar interactions. Two massive scalar modes yield corrections to Newton's law at short distances, which persist even in the limit of vanishing dilaton (namely, in the standard Randall--Sundrum configuration).

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V. Bozza, M. Gasperini, G. Veneziano. 2001-11-29. Scalar fluctuations in dilatonic brane-worlds. https://arxiv.org/abs/hep-th/0111268

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